ArticleJournal of cataract and refractive surgery2017
Distinguishing between contact lens warpage and ectasia: Usefulness of optical coherence tomography epithelial thickness mapping.
Article in Journal of cataract and refractive surgery, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 17 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
17 citing papers in PubMed.
- Variation in corneal biomechanical properties following continuous cross-linking treatment.Eye and vision (London, England) · 2026Article
- Epithelial Mapping Efficacy for Subclinical Keratoconus Identification.American journal of ophthalmology · 2025Article
- Blepharoptosis and corneal epithelial thickness alterations, is there any relation?BMC ophthalmology · 2024Article
- Assessing progression limits in different grades of keratoconus from a novel perspective: precision of measurements of the corneal epithelium.Eye and vision (London, England) · 2024Article
- Enhancing ectasia screening using advanced AS-OCT: a case series of challenging refractive candidates.Frontiers in ophthalmology · 2024Article
- Corneal Epithelial Thickness Mapping: A Major Review.Journal of ophthalmology · 2024Review
- Repeatability of corneal pachymetry and epithelial thickness measurements with spectral-domain optical coherence tomography (SD-OCT) and correlation to ocular surface parameters.International ophthalmology · 2023Article
- Mechanical removal of epithelial hyperplasia leads to successful treatment of irregular astigmatism.BMC ophthalmology · 2023Article
- The Combined Utilization of Epithelial Thickness Mapping and Tomography in Keratorefractive Surgery Screening: One Imaging Modality is Not Sufficient.Clinical ophthalmology (Auckland, N.Z.) · 2023Article
- Corneal and corneal epithelial thickness distribution characteristics in healthy North Indian eyes using spectral domain optical coherence tomography.Indian journal of ophthalmology · 2022Observational
- Differentiating Between Contact Lens Warpage and Keratoconus Using OCT Maps of Corneal Mean Curvature and Epithelial Thickness.Journal of refractive surgery (Thorofare, N.J. : 1995) · 2022Article
- Simultaneous Corneal Topography and Epithelial Thickness Mapping from a Single Measurement Using Optical Coherence Tomography.Journal of ophthalmology · 2022Article
- Revisiting the Robustness of Pentacam HR Indices Against Soft Contact Lens Wear.Clinical ophthalmology (Auckland, N.Z.) · 2021Article
- Advanced epithelial mapping for refractive surgery.Indian journal of ophthalmology · 2020Review
- A Coincident Thinning Index for Keratoconus Identification Using OCT Pachymetry and Epithelial Thickness Maps.Journal of refractive surgery (Thorofare, N.J. : 1995) · 2020Article
- Biomechanical diagnostics of the cornea.Eye and vision (London, England) · 2020Review
- Understanding Corneal Epithelial Thickness Mapping.Middle East African journal of ophthalmologyReview
Corrections and comments
- Erratum issuedErratum.2017
Authors and funding
6 authors.
Funding
Abstract
purposeTo distinguish between corneal ectasia and contact lens-related warpage by characteristic patterns on corneal topography and optical coherence tomography (OCT) epithelial thickness maps.
settingCasey Eye Institute, Portland, Oregon, USA.
designProspective and retrospective case series.
methodsAxial and mean power maps were obtained on corneal topography systems. Epithelial thickness maps were generated using RTVue OCT. A sector divider was applied to all maps. The locations of the minimum epithelial thickness, maximum epithelial thickness, maximum axial power, and maximum mean power were determined based on sector averages. Agreement was defined as the extremums occurring in the same or adjacent sectors.
resultsTwenty-one eyes with keratoconus, 6 eyes with forme fruste keratoconus (better eye of asymmetric keratoconus), and 15 eyes with contact lens-related warpage were identified. The keratoconus and forme fruste keratoconus eyes had coincident topographic steepening with epithelial thinning. The locations of minimum epithelial thickness and maximum axial power agreed in 90% of the keratoconic eyes, while the minimum epithelial thickness and maximum mean power agreed in 95% of them. Conversely, the warpage eyes had coincident topographic steepening with epithelial thickening and normal pachymetry maps. The locations of maximum epithelial thickness and maximum axial power agreed in 93% of the warpage eyes, while the maximum epithelial thickness and maximum mean power agreed in all warpage eyes.
conclusionResults show that epithelial thickness maps and corneal topographic maps are powerful synergistic tools in evaluating eyes with abnormal topography and can help differentiate between keratoconus and nonectatic conditions.
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